I also vote Pretty Parlor! It's my favorite G1 playset and is fairly easy to find in good condition (if you care about plastic changing color, just really look at the pics before buying--some Parlors tend to have one side go a bit green, and the white can yellow). I love the Show Stable but it is very very hard to find one that doesn't show signs of aging. If the plastic looks good, the stickers are brown:( That's why I don't own one. The Dream Castle is also great if you have more space and is probably the most fun G1 playset as far as displaying ponies.